29/32" S&D Black Oxide Drill Bit

The Milwaukee 48-89-2751 is a 29/32" Silver & Deming (S&D) black oxide drill bit, built for very large, heavy-duty drilling applications in metal, wood, and plastic.

This is part of Milwaukee’s reduced-shank S&D series, meaning the cutting diameter is large, but the shank is 1/2" so it fits standard drill chucks.

Key Features

• 135° split point tip – starts on contact and prevents walking for accurate drilling
• Black oxide coating – reduces friction and improves corrosion resistance
• Parabolic flute design – clears chips quickly for faster, cooler drilling
• 1/2" reduced shank (3-flat Secure-Grip) – fits standard drill chucks securely
• Heavy-duty web construction – improves strength for large hole drilling
  

Specs

• Size: 29/32 in (0.9062")
• Shank: 1/2" reduced (S&D style)
• Material: High-speed steel (HSS)
• Finish: Black oxide
• Overall length: ~6 in
• Use: Metal, wood, PVC, plastics

Best Uses

• Very large structural bolt holes
• Steel fabrication and heavy construction work
• Thick timber / beam drilling
• HVAC, plumbing, and mechanical installs
• Any application requiring maximum hole size using a standard drill

Bottom Line

The 48-89-2751 is a large S&D reduced-shank drill bit, designed so a normal drill can handle nearly 1-inch diameter holes safely. It’s strictly for heavy-duty structural drilling, not precision or light-duty work.